Re: [PATCH] i2c: tegra: Fix ifdefs for suspend mode

Wolfram Sang
2012-08-18T12:12:27Z

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On Sat, Aug 18, 2012 at 01:01:38PM +0100, Mark Brown wrote:
> On Sat, Aug 18, 2012 at 09:07:32AM +0200, Wolfram Sang wrote:
> > On Mon, Jul 30, 2012 at 07:03:07PM +0530, Laxman Dewangan wrote:
> > > CONFIG_PM covers runtime only PM.
>
> > I am a bit confused by this description. CONFIG_PM_RUNTIME covers
> > runtime PM, no?
>
> The issue is that CONFIG_PM doesn't actually enable any of the PM
> callbacks, it only allows you to enable CONFIG_PM_SLEEP and
> CONFIG_PM_RUNTIME. This means that if you use CONFIG_PM to protect your
> system sleep callbacks they may end up unreferenced if only runtime PM
> is enabled.

Thanks for the explanation!

Laxman, could you update the description to reflect that?

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